I consider myself a very good swimmer; I know how to swim well. My strength is in swimming pool swimming. Recently, I have been open water swimming in the ocean. I always swim right to the edge of the buoy in the ocean.
However, I started wearing googles and it has been all downhill. I cannot see the sea bottom and it has completely put my off. You name it; sharks, drowning, all types of fears. It results in my keeping my head above water and failing bi-lateral swimming. I cannot even swim far out without getting scared.
My question is: I want some techniques to develop this mind over matter and was wondering what helps?